[Popular Sites] Split PopularSites interface and PopularSitesImpl

components/ntp_tiles/webui/popular_sites_internals_message_handler.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/ntp_tiles/webui/popular_sites_internals_message_handler.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
@@ skipping 134 matching lines @@
   auto sites_list = base::MakeUnique<base::ListValue>();
   for (const PopularSites::Site& site : popular_sites_->sites()) {
     auto entry = base::MakeUnique<base::DictionaryValue>();
     entry->SetString("title", site.title);
     entry->SetString("url", site.url.spec());
     sites_list->Append(std::move(entry));
   }
 
   base::DictionaryValue result;
   result.Set("sites", std::move(sites_list));
-  result.SetString("url", popular_sites_->LastURL().spec());
+  result.SetString("url", popular_sites_->GetLastURLFetched().spec());
   web_ui_->CallJavascriptFunction("chrome.popular_sites_internals.receiveSites",
                                   result);
 }
 
 void PopularSitesInternalsMessageHandler::SendJson(const std::string& json) {
   web_ui_->CallJavascriptFunction("chrome.popular_sites_internals.receiveJson",
                                   base::StringValue(json));
 }
 
 void PopularSitesInternalsMessageHandler::OnPopularSitesAvailable(
     bool explicit_request,
     bool success) {
   if (explicit_request)
     SendDownloadResult(success);
   SendSites();
 }
 
 }  // namespace ntp_tiles